What's really inside vapes? We pulled them apart to find out Study: Potent sweetener neotame found by researchers in popular vapes A new study from UC Davis found that disposable vapes have much higher concentrations of heavy metals like lead and nickel than traditional cigarettes. CBS Evening News Facebook Young Vapers and Smokers Performed Similarly in New Study InsideHook Changes in vaping trends since the announcement of an impending ban on disposable vapes: A population study in Great Britain Jackson 2025 Addiction Wiley Online Library